So let's see MT-Plagger demo. The basic idea of the plugin is so simple. When you create or update a new post on Movable Type CMS, new MT::Entry object will be transformed to Plagger::Feed (where MT::Blog corresponds to Feed and MT::Entry to Plagger::Entry) and it will bootstrap the Plagger context to run the later pharses than Filter.

You can see in the demo how it works with Publish::Gmail to notify email, and Notify::IRC to do realtime notification to the IRC channel. Integration with Search::* to build a better search engine for MT would be a nice hack. Making it work with new Comment (rather than Entry) would be cool for pluggable Comment notification. Using Publish::Delicious and you'll always get your entry bookmarked on del.icio.us first :)